Tracheostomy humidifier cover



FIG. 1 is a perspective view of a tracheostomy humidifier cover showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is an end view thereof. 

CLAIM The ornamental design for a tracheostomy humidifier, as shown. 